Thread: DMT 325 for JNat slurry

Originally Posted by mainaman

Each stone is different, I have not seen an ultra hard Nakayama but I am sure there are plenty out there. I have a super hard Shobodani and Ozuko tomonagura. Those will work up (slowly) slurry from the base stone mainly. Tospeed up theprocess it helps to cut grooves in the tomonagura to reduce stiction.

Okay, my understanding is that the Nakayama are real hard jnats like an Ozuku but of course I am not sure if they are considered "ultra hard". Out of these stones, the Nakayama Asagi, Ozuku Asagi and a Shoubudani, which one the hardest stone and best to use for a base stone with a nagura?

I was told that I would just need one ultra hard nagura that would work any any of the stones listed above so trying to find one! Thanks for the help!

Originally Posted by SirMike

Okay, my understanding is that the Nakayama are real hard jnats like an Ozuku but of course I am not sure if they are considered "ultra hard". Out of these stones, the Nakayama Asagi, Ozuku Asagi and a Shoubudani, which one the hardest stone and best to use for a base stone with a nagura?

I was told that I would just need one ultra hard nagura that would work any any of the stones listed above so trying to find one! Thanks for the help!

The hardest I have ever seen was a Shobodani Asagi, but my hardest stone now is Ozuko asagi. In general Nakayama are not the hardest out there, again there are specimen that will be very hard. I do not think that looking for the hardest base stone is the right way to go. The reason being fineness and hardness are not necessarily related. Super hard stones while quite possibly very fine are also more likely to scratch the bevels of a razor. Those types are the hardest to learn because of that. A little less hard stone can be extremely fine as well but much easier to use. Finding the right J-Nats for ones taste and style of honing is a bit of a rbit hole.

Originally Posted by mainaman

The hardest I have ever seen was a Shobodani Asagi, but my hardest stone now is Ozuko asagi. In general Nakayama are not the hardest out there, again there are specimen that will be very hard. I do not think that looking for the hardest base stone is the right way to go. The reason being fineness and hardness are not necessarily related. Super hard stones while quite possibly very fine are also more likely to scratch the bevels of a razor. Those types are the hardest to learn because of that. A little less hard stone can be extremely fine as well but much easier to use. Finding the right J-Nats for ones taste and style of honing is a bit of a rbit hole.

I understand your point. Thanks for the information.

I hope I didn't get off track with my rambling on but just to clarify, I have the Nakayama Asagi and the Ozuku Asagi and just trying to get an idea of their abilities, hardness, speed etc. to decide which one I would like to use. I am also trying to find a nagura that will work with either and others like a Shoubudani if I get one down the line or to replace the two I already have. My other thought was to use one of the two I already have with a nagura set like the 3 stone one if that would work with them.


I understand there is a rabbit hole for sure but I really don't want to try out (purchase/then sell) various jnats if I don't have to.

Originally Posted by SirMike

I understand your point. Thanks for the information.

I hope I didn't get off track with my rambling on but just to clarify, I have the Nakayama Asagi and the Ozuku Asagi and just trying to get an idea of their abilities, hardness, speed etc. to decide which one I would like to use. I am also trying to find a nagura that will work with either and others like a Shoubudani if I get one down the line or to replace the two I already have. My other thought was to use one of the two I already have with a nagura set like the 3 stone one if that would work with them.


I understand there is a rabbit hole for sure but I really don't want to try out (purchase/then sell) various jnats if I don't have to.

Each stone will be different even from the same mine, so it is impossible to tell how your hones will perform. You have to test and compare the results.
With the tomonagura you will have to try different ones and see which one(s) work best. You can also send the hones out to be evaluated.